DR. THEODORE ERIC MACNOW MD
NPI 1760626832
Pediatrics - Pediatric Emergency Medicine in Worcester, MA

Active since April 20, 2009PECOS Enrolled
55 LAKE AVE N, EMERGENCY MEDICINE DEPARTMENT, WORCESTER, MA 01655(774) 442-2599(774) 442-2510 Get Directions Write a Review

NPPES record last updated: November 9, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Nov 9, 2020, Apr 18, 2017 (2 updates tracked since 2017).

About Dr. Theodore Eric Macnow Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. THEODORE ERIC MACNOW MD (NPI 1760626832) is an individual pediatric emergency medicine provider in Worcester, Massachusetts, licensed in Massachusetts (254522) and active in the NPI registry since April 2009. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1760626832
Entity TypeIndividualMale
Primary Taxonomy2080P0204X
Provider Legal NameDR. THEODORE ERIC MACNOWCredential: MD
Location Address55 LAKE AVE N, EMERGENCY MEDICINE DEPARTMENTWorcester, MA 01655-0002
Mailing AddressPo Box 415348Boston, MA 02241-5348 · (800) 225-8885 · Fax (508) 334-1977
Fax(774) 442-2510
Sole ProprietorNo
Enumeration DateApril 20, 2009
Last NPPES UpdateNovember 9, 20202 updates tracked since enumeration
NPPES CertifiedNovember 9, 2020
✔ NPI 1760626832 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric Emergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080P0204X
License✔ Licensed in MA · 254522
Definition
A pediatrician who has special qualifications to manage emergencies in infants and children.
Also ListedPediatricsTaxonomy 208000000X · License 254522 (MA)
55 LAKE AVE N, Worcester, MA 01655

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Theodore Eric Macnow Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Theodore Macnow reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Internal Medicine
55 LAKE AVE N
Worcester, MA 01655
  • Reassigned Medicare billing, Massachusetts enrollment
  • 2,902 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Emergency Medicine
55 LAKE AVE N
WORCESTER, MA 01655
Nurse Practitioner
55 LAKE AVE N, DEPARTMENT OF RADIOLOGY
WORCESTER, MA 01655
Nurse Anesthetist, Certified Registered
55 LAKE AVE N, DEPARTMENT OF ANESTHESIOLOGY
WORCESTER, MA 01655
Physician Assistant
55 LAKE AVE N
WORCESTER, MA 01655
Internal Medicine
55 LAKE AVE N
WORCESTER, MA 01655
Internal Medicine (Hematology & Oncology)
55 LAKE AVE N
WORCESTER, MA 01655
Anesthesiology
55 LAKE AVE N, ANESTHESIOLOGY
WORCESTER, MA 01655
Anesthesiology
55 LAKE AVE N
WORCESTER, MA 01655

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Theodore Macnow's NPI number?

The NPI number for Theodore Macnow is 1760626832. It was assigned to this individual provider in the NPPES registry on April 20, 2009.

Where is Theodore Macnow located?

Theodore Macnow practices at 55 Lake Ave N Emergency Medicine Department, Worcester, MA 01655. The listed phone number is (774) 442-2599.

What is Theodore Macnow's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Emergency Medicine, with taxonomy code 2080P0204X.

Is Theodore Macnow enrolled in Medicare?

Yes. Theodore Macnow is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Theodore Macnow's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Theodore Macnow reassigns Medicare benefits to Umass Memorial Medical Group Inc (Worcester, MA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Theodore Macnow's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Theodore Macnow accept?

Health plans from Taro Health list Theodore Macnow as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Theodore Macnow was last updated on November 9, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.